CN104029119B - Workhead hydrostatic spindle of bearing ring grinder - Google Patents
Workhead hydrostatic spindle of bearing ring grinder Download PDFInfo
- Publication number
- CN104029119B CN104029119B CN201410243746.5A CN201410243746A CN104029119B CN 104029119 B CN104029119 B CN 104029119B CN 201410243746 A CN201410243746 A CN 201410243746A CN 104029119 B CN104029119 B CN 104029119B
- Authority
- CN
- China
- Prior art keywords
- bearing
- main shaft
- shaft body
- thrust
- liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turning (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The invention discloses a workhead hydrostatic spindle of a bearing ring grinder. The workhead hydrostatic spindle comprises a spindle body, a base, a front liquid bearing, a back liquid bearing, a front end cover, a back end cover and an adjusting pad, wherein the spindle body is mounted in the base through the front liquid bearing and the back liquid bearing; the front end cover and the back end cover are arranged at two ends of the base respectively; a thrust spindle shoulder is arranged on the spindle body and sleeved with the adjusting pad; both the thrust spindle shoulder and the adjusting pad are located between the front end cover and the front liquid bearing; thrust oil cavities are formed between the front end cover and the thrust spindle shoulder and between the front liquid bearing and the thrust spindle shoulder; a cooling water through hole is formed in the center of the spindle body; a Morse No.4 inner taper hole communicated with the cooling water through hole is formed in the front end of the spindle body; connecting holes for mounting a bearing ring mounting base are formed in the front end surface of the spindle body; the front end surface of the spindle body does not extend out of the front end of the base. The workhead hydrostatic spindle of the bearing ring grinder has the advantages of high rotation precision, high axial rigidity, long service life and high machining precision.
Description
Technical field
The present invention relates to the workhead hydrostatic spindle of bearing-ring grinder, more particularly, to bearing-ring grinder.
Background technology
Bearing is the important foundation parts of all kinds of mechanized equipments, and its precision, performance, life and reliability are to main frame
Precision, performance, life and reliability play conclusive effect.In engineering goods, bearing belongs to high-precision product, not only needs
Want the theoretical synthesis of the subjects such as mathematics, physics to support, and need material science, heat treatment technics, Precision Machining and survey
Amount technology, Numeric Control Technology and the subjects such as effective numerical method and powerful computer technology service, therefore for it
Bearing is a product representing national science and technology strength again.
The machining accuracy of bearing ring plays vital impact to the performance of bearing, and the precision of bearing ring depends on
Crudy in bearing-ring grinder, then the workhead of bearing-ring grinder just plays critical effect；Modern essence
Close bearing fundamentally proposes following requirement to the workhead main shaft of bearing-ring grinder：
1st, main shaft radial rigidity and axial rigidity are had high demands, particularly axial rigidity.Bearing ring groove processed
Cheng Zhonghui produces certain axial force to workhead main shaft and requires ditch position can not change.
2nd, the required precision to main shaft is very high.The axial float of main shaft and rotating accuracy directly affect the essence of bearing ring
Degree and ditch position.
3rd, the sealing property requirement to main shaft is very high.Grinding process can be passed through a large amount of cutting fluids, throughout main shaft surrounding environment
In.Therefore must there is very reliable sealing structure, the processing needs of high reliability could be met.
Content of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, provides a kind of rotating accuracy high, axially just
The workhead hydrostatic spindle of the high bearing-ring grinder of degree height, long service life, machining accuracy.
For solving above-mentioned technical problem, the present invention employs the following technical solutions：
A kind of workhead hydrostatic spindle of bearing-ring grinder, including main shaft body, support, front liquid-bearing, rear liquid
Body bearing, drive end bearing bracket, rear end cap and adjusting pad, described main shaft body is installed in support by front liquid-bearing and rear liquid-bearing
Interior, described drive end bearing bracket and rear end cap are divided into support two ends, and described main shaft body is provided with the thrust shaft shoulder, and described adjusting pad is sheathed
Outside the thrust shaft shoulder, the described thrust shaft shoulder and adjusting pad are respectively positioned between drive end bearing bracket and front liquid-bearing, described drive end bearing bracket with only
Between push shaft shoulder, between described front liquid-bearing and the thrust shaft shoulder, it is equipped with thrust oil pocket, described main shaft body center is provided with cold
But water through hole, described main shaft body front end is provided with No. four internal taper holes of the Mohs communicating with described cooling water through hole, and described main shaft is originally
The front end face of body is provided with the connecting hole for installing bearing ring mounting seat, and the front end face of described main shaft body does not extend out described machine
Seat front end.
Improvement further as technique scheme：
Described support is provided with the oil-feed oil circuit that the static pressure chamber of static pressure chamber with front liquid-bearing and rear liquid-bearing communicates, institute
State support and be provided with the draining chamber that the draining oil circuit of draining oil circuit with front liquid-bearing and rear liquid-bearing communicates, described draining chamber
It is provided with oil return opening.
Described main shaft body rear end is provided with the cooling water rotating joint interface connecting with cooling water through hole.
Compared with prior art, it is an advantage of the current invention that：
The workhead hydrostatic spindle of the bearing-ring grinder of the present invention, using front liquid-bearing and rear liquid-bearing to master
Shaft body radial support, makes the rotating accuracy of main shaft body high, life-span length；Using thrust oil pocket, main shaft body is axially supported,
The axial rigidity of main shaft body is made to greatly improve, when can reduce processing, the axial float of main shaft body is it is ensured that the ditch of bearing ring
Positional precision；By thrust oil pocket be used for installing the connecting hole of bearing ring mounting seat all located at main shaft body front end, and main shaft
The front end face of body does not extend out support front end, reduces the Mold processing of main shaft body support end, is greatly improved main shaft body pair
The rigidity of support of bearing ring, and reduce the impact to main shaft precision for the thermal deformation；By arranging cooling water through hole in main shaft body,
Cooling water can be passed through main shaft body is cooled down, quickly take away the heat of main shaft body, reduce main shaft body thermal deformation；Main shaft
Body front end is provided with No. four internal taper holes of Mohs, installs check bar in No. four inner cone in the holes of Mohs and can improve each part on lathe
Assembling positioning precision, thus improve machining accuracy；Adjusting pad can be adjusted to thrust gap, thus improving overall assembly precision
And efficiency of assembling, adjust the serviceability of workhead hydrostatic spindle.
Brief description
Fig. 1 is the main cross section structure diagram of the present invention.
Fig. 2 is the K direction view of Fig. 1.
The each label of in figure represents：
1st, main shaft body；11st, the thrust shaft shoulder；12nd, thrust oil pocket；13rd, cooling water through hole；14th, No. four internal taper holes of Mohs；
15th, connecting hole；16th, cooling water rotating joint interface；2nd, support；21st, oil-feed oil circuit；22nd, draining chamber；23rd, oil return opening；3rd, front liquid
Body bearing；4th, rear liquid-bearing；5th, drive end bearing bracket；6th, rear end cap；7th, adjusting pad.
Specific embodiment
Figures 1 and 2 show that a kind of workhead hydrostatic spindle embodiment of bearing-ring grinder of the present invention, this workpiece
Headstock hydrostatic spindle includes main shaft body 1, support 2, front liquid-bearing 3, rear liquid-bearing 4, drive end bearing bracket 5, rear end cap 6 and adjustment
Pad 7, main shaft body 1 passes through front liquid-bearing 3 and rear liquid-bearing 4 is installed in support 2, and drive end bearing bracket 5 and rear end cap 6 are divided into
Support 2 two ends, main shaft body 1 is provided with the thrust shaft shoulder 11, and adjusting pad 7 is sheathed on outside the thrust shaft shoulder 11, the thrust shaft shoulder 11 and adjust
Whole pad 7 is respectively positioned between drive end bearing bracket 5 and front liquid-bearing 3, between drive end bearing bracket 5 and the thrust shaft shoulder 11, front liquid-bearing 3 and thrust
Be equipped with thrust oil pocket 12 between the shaft shoulder 11, main shaft body 1 center is provided with cooling water through hole 13, main shaft body 1 front end be provided with
No. four internal taper holes 14 of the Mohs that cooling water through hole 13 communicates, the front end face of main shaft body 1 is provided with to be installed for installing bearing ring
The connecting hole 15 of seat, the front end face of main shaft body 1 does not extend out support 2 front end.The workhead of the bearing-ring grinder of the present invention
Hydrostatic spindle, using front liquid-bearing 3 and rear liquid-bearing 4 to main shaft body 1 radial support, makes the revolution essence of main shaft body 1
Degree is high, life-span length；Using thrust oil pocket 12, main shaft body 1 is axially supported, so that the axial rigidity of main shaft body 1 is greatly improved,
When can reduce processing, the axial float of main shaft body 1 is it is ensured that the ditch positional precision of bearing ring；By thrust oil pocket 12 be used for pacifying
The connecting hole 15 of dress bearing ring mounting seat is all located at main shaft body 1 front end, and the front end face of main shaft body 1 does not extend out support 2
Front end, reduces the Mold processing of main shaft body 1 support end, is greatly improved the rigidity of support to bearing ring for the main shaft body 1, and
Reduce the impact to main shaft precision for the thermal deformation；By arranging cooling water through hole 13 in main shaft body 1, cooling water can be passed through to main shaft
Body 1 is cooled down, and quickly takes away the heat of main shaft body 1, reduces main shaft body 1 thermal deformation；Main shaft body 1 front end is provided with
No. four internal taper holes 14 of Mohs, install the assembling positioning accurate that check bar can improve each part on lathe in No. four internal taper holes 14 of Mohs
Degree, thus improve machining accuracy；Adjusting pad 7 can be adjusted to thrust gap, thus improving overall assembly precision and assembling effect
Rate, adjusts the serviceability of workhead hydrostatic spindle.
In the present embodiment, support 2 is provided with and is communicated with the static pressure chamber of front liquid-bearing 3 and the static pressure chamber of rear liquid-bearing 4
Oil-feed oil circuit 21, support 2 is provided with the draining communicating with the draining oil circuit of front liquid-bearing 3 and the draining oil circuit of rear liquid-bearing 4
Chamber 22, draining chamber 22 is provided with oil return opening 23, and the setting of this oil channel structures is simple, be easy to processing.
In the present embodiment, main shaft body 1 rear end is provided with the cooling water rotating joint interface 16 connecting with cooling water through hole 13,
So that connection cooling water rotating joint, enable main shaft body 1 to be passed through cooling water when working and cooled down.
Although the present invention is disclosed above with preferred embodiment, but it is not limited to the present invention.Any it is familiar with ability
The technical staff in domain, in the case of without departing from technical solution of the present invention scope, can be utilized the technology contents pair of the disclosure above
Technical solution of the present invention makes many possible variations and modification, or the Equivalent embodiments being revised as equivalent variations.Therefore, every
Without departing from the content of technical solution of the present invention, according to the technology of the present invention essence to any simple modification made for any of the above embodiments,
Equivalent variations and modification, all should fall in the range of technical solution of the present invention protection.
Claims (3)
1. a kind of bearing-ring grinder workhead hydrostatic spindle it is characterised in that：Including main shaft body（1）, support（2）、
Front liquid-bearing（3）, rear liquid-bearing（4）, drive end bearing bracket（5）, rear end cap（6）And adjusting pad（7）, described main shaft body（1）Logical
Cross front liquid-bearing（3）With rear liquid-bearing（4）It is installed in support（2）Interior, described drive end bearing bracket（5）And rear end cap（6）It is divided into
Support（2）Two ends, described main shaft body（1）It is provided with the thrust shaft shoulder（11）, described adjusting pad（7）It is sheathed on the thrust shaft shoulder（11）
Outward, the described thrust shaft shoulder（11）And adjusting pad（7）It is respectively positioned on drive end bearing bracket（5）With front liquid-bearing（3）Between, described drive end bearing bracket
（5）With the thrust shaft shoulder（11）Between, described front liquid-bearing（3）With the thrust shaft shoulder（11）Between be equipped with thrust oil pocket（12）,
Described main shaft body（1）Center is provided with cooling water through hole（13）, described main shaft body（1）Front end is provided with and described cooling water through hole
（13）No. four internal taper holes of the Mohs communicating（14）, described main shaft body（1）Front end face be provided with for install bearing ring install
The connecting hole of seat（15）, described main shaft body（1）Front end face do not extend out described support（2）Front end.
2. bearing-ring grinder according to claim 1 workhead hydrostatic spindle it is characterised in that：Described support
（2）It is provided with and front liquid-bearing（3）Static pressure chamber and rear liquid-bearing（4）The oil-feed oil circuit that communicates of static pressure chamber（21）, described
Support（2）It is provided with and front liquid-bearing（3）Draining oil circuit and rear liquid-bearing（4）The draining chamber that communicates of draining oil circuit
（22）, described draining chamber（22）It is provided with oil return opening（23）.
3. bearing-ring grinder according to claim 1 workhead hydrostatic spindle it is characterised in that：Described main shaft is originally
Body（1）Rear end is provided with and cooling water through hole（13）The cooling water rotating joint interface of connection（16）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410243746.5A CN104029119B (en) | 2014-06-04 | 2014-06-04 | Workhead hydrostatic spindle of bearing ring grinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410243746.5A CN104029119B (en) | 2014-06-04 | 2014-06-04 | Workhead hydrostatic spindle of bearing ring grinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104029119A CN104029119A (en) | 2014-09-10 |
| CN104029119B true CN104029119B (en) | 2017-02-15 |
Family
ID=51460234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410243746.5A Active CN104029119B (en) | 2014-06-04 | 2014-06-04 | Workhead hydrostatic spindle of bearing ring grinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104029119B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107097152A (en) * | 2017-05-05 | 2017-08-29 | 固耐重工（苏州）有限公司 | A kind of static-pressure central frame |
| CN114603438A (en) * | 2022-03-11 | 2022-06-10 | 兰州交通大学 | P2-grade angular contact ball bearing raceway machining precision control method and machine tool |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201291421Y (en) * | 2008-11-19 | 2009-08-19 | 湖南大学 | Grinding machine static head frame capable of realizing accurate/ultra-accurate grinding |
| CN201300348Y (en) * | 2008-11-28 | 2009-09-02 | 株洲硬质合金集团有限公司 | High-rigidity and high-precision internal grinding lathe |
| JP2010162634A (en) * | 2009-01-14 | 2010-07-29 | Jtekt Corp | Spindle device |
| JP2010228048A (en) * | 2009-03-27 | 2010-10-14 | Disco Abrasive Syst Ltd | Cutting device |
| CN102266951B (en) * | 2011-04-27 | 2013-06-19 | 天津大学 | Precise type dynamic and static pressure ceramic main shaft device |
| JP5966651B2 (en) * | 2012-06-19 | 2016-08-10 | 株式会社ジェイテクト | Spindle device |
| CN102962765A (en) * | 2012-11-22 | 2013-03-13 | 威海华东数控股份有限公司 | Static-pressure main shaft with two supported ends |
| CN203936772U (en) * | 2014-06-04 | 2014-11-12 | 湖南海捷主轴科技有限公司 | The workhead hydrostatic spindle of bearing-ring grinder |
-
2014
- 2014-06-04 CN CN201410243746.5A patent/CN104029119B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104029119A (en) | 2014-09-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102639888A (en) | Rolling bearing arrangement | |
| CN204504240U (en) | The efficient dynamic/static piezoelectric main shaft of a kind of high speed and super precision | |
| CN103846459A (en) | Electric main shaft supported by hydrostatic integrated gas bearing | |
| CN104029119B (en) | Workhead hydrostatic spindle of bearing ring grinder | |
| CN102172877B (en) | Grinding device for high-precision ultrathin wafer | |
| CN102886534B (en) | High-speed and high-rigidity dynamic and static pressure built-in electric main shaft | |
| CN103158070B (en) | Grinding coolant input mechanism of motorized main shaft and thinner | |
| CN105339115B (en) | The main shaft device and lathe of lathe | |
| CN104070456A (en) | Static pressure trimmer for ultra precision ball bearing inner ring channel grinding abrasive wheel and trimming method | |
| CN106112796A (en) | A kind of double end internal grinding electro spindle | |
| CN203936772U (en) | The workhead hydrostatic spindle of bearing-ring grinder | |
| CN202010925U (en) | Grinding device for high precision and ultra-thinned wafer | |
| CN204621562U (en) | 4th axle torque motor high-speed numeric control turntable | |
| CN107877370B (en) | Double-end main shaft | |
| CN200993163Y (en) | Lower air baring for air-floating electric spindle | |
| CN101758456A (en) | Vertical dynamic/static piezoelectric main shaft | |
| CN102717333B (en) | High-speed electric main shaft structure of machine tool | |
| CN109622997A (en) | A kind of perseverance axle center independence spindle box | |
| CN103522119B (en) | A kind of oil cooling sealing device of rotary guide sleeve | |
| CN201423571Y (en) | Electrodynamic static-dynamic pressure shaft grinder unit | |
| CN205888726U (en) | Be applied to CNC machining center's bearing cooling device | |
| CN201609868U (en) | Vertical dynamic-static piezoelectric main shaft | |
| CN104174919A (en) | Efficient internal cooling rotating joint of numerical control machine tool | |
| CN204108745U (en) | A kind of oil cooling sealing device of rotary guide sleeve | |
| CN201302031Y (en) | Axial cavity-type dynamic pressure spindle assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170614 Address after: 410205 Hunan province Changsha Changsha city high tech Development Zone No. 186 Gu Yuan Lu, Hunan University science and Technology Park Co. business building room 515 Patentee after: Hunan Hai Jie main shaft Science and Technology Ltd. Address before: 410205 Hunan province Changsha Changsha city high tech Development Zone No. 186 Gu Yuan Lu, Hunan University science and Technology Park Co. business building room 515 Co-patentee before: Hunan University Patentee before: Hunan Hai Jie main shaft Science and Technology Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171103 Address after: 510730 6 Jiangdong Street, Yonghe Economic Zone, Guangzhou economic and Technological Development Zone, Guangzhou, Guangdong Patentee after: Guangzhou Haozhi Industrial Co., Ltd. Address before: 410205 Hunan province Changsha Changsha city high tech Development Zone No. 186 Gu Yuan Lu, Hunan University science and Technology Park Co. business building room 515 Patentee before: Hunan Hai Jie main shaft Science and Technology Ltd. |